:root {
  --seren-green: #677B50;
  --seren-green-dark: #576C4F;
  --seren-page-bg: #f7f9fe;
  --seren-dark-bg: #0d0d0d;
  --serenius-one-flow-image: url("https://a1.boltp.com/2026/06/04/6a218a2edb885.jpg");
}


body:has(#page-header.full_page) #web_bg {
  background-image: var(--serenius-one-flow-image) !important;
  background-size: cover !important;
  background-position: center center !important;
  background-attachment: fixed !important;
}

body:not(:has(#page-header.full_page)) #web_bg {
  display: none !important;
}

#page-header.full_page {
  background: transparent !important;
  background-color: transparent !important;
}

#page-header.full_page::before {
  background-color: rgba(0, 0, 0, 0.28) !important;
}

#page-header.full_page + main,
#page-header.full_page ~ main {
  position: relative;
}

#article-container {
  color: color-mix(in srgb, var(--font-color, #37352f) 82%, #37352f 18%);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 17px;
  line-height: 1.72;
  letter-spacing: 0;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

#article-container p {
  margin: 0.55em 0;
}

#article-container h1,
#article-container h2,
#article-container h3,
#article-container h4,
#article-container h5,
#article-container h6 {
  color: color-mix(in srgb, var(--font-color, #37352f) 86%, #37352f 14%);
  font-family: inherit;
  font-weight: 600;
  letter-spacing: 0;
}

@media (max-width: 768px) {
  #article-container {
    font-size: 16.5px;
    line-height: 1.68;
  }
}

#card-toc .toc-number {
  display: none;
}

#article-container hr {
  position: relative;
  height: 1.8rem;
  margin: 2.35rem auto 2.5rem;
  border: 0;
  overflow: visible;
  background: none;
}

#article-container hr::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, #677B50 24%, transparent), color-mix(in srgb, #677B50 46%, transparent), color-mix(in srgb, #677B50 24%, transparent), transparent);
}

#article-container hr::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 0.72rem;
  height: 0.72rem;
  border: 1px solid color-mix(in srgb, #677B50 48%, transparent);
  border-radius: 999px 999px 999px 0;
  background: color-mix(in srgb, var(--card-bg, #fff) 82%, #f4f8ed 18%);
  box-shadow:
    0 0 0 0.38rem color-mix(in srgb, var(--card-bg, #fff) 92%, transparent),
    0 0 0 0.5rem color-mix(in srgb, #677B50 7%, transparent);
  transform: translate(-50%, -50%) rotate(-45deg);
}



#page-header.not-home-page,
#page-header.post-bg {
  position: relative;
  overflow: hidden;
}

.seren-header-wave {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  z-index: 5;
  height: 82px;
  pointer-events: none;
  overflow: hidden;
}

.seren-wave-svg {
  display: block;
  width: 100%;
  height: 82px;
  min-height: 62px;
}

.seren-wave-layers > use {
  animation: serenWaveMove 24s cubic-bezier(0.55, 0.5, 0.45, 0.5) infinite;
}

.seren-wave-layers > use:nth-child(1) {
  animation-delay: -2s;
  animation-duration: 7s;
  fill: color-mix(in srgb, #677B50 15%, #f7f9fe 85%);
  opacity: 0.34;
}

.seren-wave-layers > use:nth-child(2) {
  animation-delay: -3s;
  animation-duration: 10s;
  fill: color-mix(in srgb, #677B50 8%, #f7f9fe 92%);
  opacity: 0.48;
}

.seren-wave-layers > use:nth-child(3) {
  animation-delay: -4s;
  animation-duration: 13s;
  fill: color-mix(in srgb, #677B50 11%, #f7f9fe 89%);
  opacity: 0.5;
}

.seren-wave-layers > use:nth-child(4) {
  animation-delay: -5s;
  animation-duration: 20s;
  fill: #f7f9fe;
  opacity: 1;
}

#site-info,
#page-site-info,
#post-info {
  position: relative;
  z-index: 3;
}

@keyframes serenWaveMove {
  0% { transform: translate3d(-90px, 0, 0); }
  100% { transform: translate3d(85px, 0, 0); }
}

html[data-theme='dark'] .seren-wave-layers > use:nth-child(1),
html[data-theme='dark'] .seren-wave-layers > use:nth-child(3) {
  fill: color-mix(in srgb, #677B50 18%, #0d0d0d 82%);
  opacity: 0.34;
}

html[data-theme='dark'] .seren-wave-layers > use:nth-child(2),
html[data-theme='dark'] .seren-wave-layers > use:nth-child(4) {
  fill: #0d0d0d;
}

@media (max-width: 768px) {
  .seren-header-wave,
  .seren-wave-svg {
    height: 48px;
    min-height: 48px;
  }
}



.seren-runtime {
  display: inline-flex;
  align-items: center;
  gap: 0.35em;
  margin-left: 0.45em;
}

.seren-runtime::before {
  content: "·";
  opacity: 0.65;
}